Re: raspberry PI - no X11

[Lior Okman]

Hi,

Sorry, I just saw the thread right now.

If it happens again:

Your $HOME/.Xauthority file contains the authentication key that is used to
authenticate your X sessions. This file is manipulated with the xauth
command. When you ssh with the -X switch, it is supposed to add an entry to
your .Xauthority file to allow you to connect to the X server - but it
sometimes doesn't work.

Best fix is to use xauth to delete the bad key and enter the correct one -
use xauth on your local host to find the correct value, and then use xauth
on the remote host to delete the bad key and add the correct key.

Easier fix is to simply delete the .Xauthority file on the remote host and
try to login again and let ssh recreate it.

You could also copy the .Xauthority file from your main host to the pi.

:-) Or you could format the machine and hope for the best :-)

--
Regards,
Lior

On Tue, Feb 6, 2018 at 11:35 AM, Shlomo Solomon 
wrote:

> I finally gave up and did a re-installed of Raspbian and everything is
> back to normal. Since I do regular backups of /home and /etc, I got
> everything back to normal with no major problems.
>
>
> On Tue, 6 Feb 2018 10:20:12 +0100
> Tzafrir Cohen  wrote:
>
> > On Sun, Feb 04, 2018 at 11:54:01AM +0200, Shlomo Solomon wrote:
> > > I really don't know how I screwed this up, but I've been "playing"
> > > with this for hours with no success.
> > >
> > > I have a raspberry PI file server. I rarely use the GUI and when I
> > > do it's usually over VNC (I use KRDC) or with ssh -X.
> > >
> > > As of today:
> > > 1 - KRDC won't connect
> > >
> > > 2 - ssh -X pi@pi   (pi is defined in /etc/hosts) gives only a
> > > console login and says:
> > > X11 connection rejected because of wrong authentication.
> > >
> >
> > What are the values of DISPLAY and XAUTHORITY when you connect via
> > ssh?
> >
> > > 3 - I connected a monitor directly to the PI and it will not accept
> > > the pi password when I try to login to X11 - but DOES accept the
> > > root password. So X11 is OK, but only for root - not the regular pi
> > > user.
> >
> > I must be missing something, but: how are the two related? In (2) you
> > try to authorize X11 programs on the pi to connect to an X server
> > running on your PC.
> >
> > In (3) you run an X server on the pi (and X11 clients running on the
> > pi that should connect to it).
> >
>
>
>
> --
> Shlomo Solomon
> http://the-solomons.net
> Claws Mail 3.11.1 - KDE 4.14.30 - Dolphin 4.14.3 - LINUX Mageia 5
>
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Re: raspberry PI - no X11

[Shlomo Solomon]

I finally gave up and did a re-installed of Raspbian and everything is
back to normal. Since I do regular backups of /home and /etc, I got
everything back to normal with no major problems.


On Tue, 6 Feb 2018 10:20:12 +0100
Tzafrir Cohen  wrote:

> On Sun, Feb 04, 2018 at 11:54:01AM +0200, Shlomo Solomon wrote:
> > I really don't know how I screwed this up, but I've been "playing"
> > with this for hours with no success.
> > 
> > I have a raspberry PI file server. I rarely use the GUI and when I
> > do it's usually over VNC (I use KRDC) or with ssh -X. 
> > 
> > As of today:
> > 1 - KRDC won't connect
> > 
> > 2 - ssh -X pi@pi   (pi is defined in /etc/hosts) gives only a
> > console login and says: 
> > X11 connection rejected because of wrong authentication.
> > 
> 
> What are the values of DISPLAY and XAUTHORITY when you connect via
> ssh?
> 
> > 3 - I connected a monitor directly to the PI and it will not accept
> > the pi password when I try to login to X11 - but DOES accept the
> > root password. So X11 is OK, but only for root - not the regular pi
> > user.
> 
> I must be missing something, but: how are the two related? In (2) you
> try to authorize X11 programs on the pi to connect to an X server
> running on your PC.
> 
> In (3) you run an X server on the pi (and X11 clients running on the
> pi that should connect to it).
> 



-- 
Shlomo Solomon
http://the-solomons.net
Claws Mail 3.11.1 - KDE 4.14.30 - Dolphin 4.14.3 - LINUX Mageia 5

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Re: raspberry PI - no X11

[Tzafrir Cohen]

On Sun, Feb 04, 2018 at 11:54:01AM +0200, Shlomo Solomon wrote:
> I really don't know how I screwed this up, but I've been "playing" with
> this for hours with no success.
> 
> I have a raspberry PI file server. I rarely use the GUI and when I do
> it's usually over VNC (I use KRDC) or with ssh -X. 
> 
> As of today:
> 1 - KRDC won't connect
> 
> 2 - ssh -X pi@pi   (pi is defined in /etc/hosts) gives only a console
> login and says: 
> X11 connection rejected because of wrong authentication.
> 

What are the values of DISPLAY and XAUTHORITY when you connect via ssh?

> 3 - I connected a monitor directly to the PI and it will not accept the
> pi password when I try to login to X11 - but DOES accept the root
> password. So X11 is OK, but only for root - not the regular pi user.

I must be missing something, but: how are the two related? In (2) you
try to authorize X11 programs on the pi to connect to an X server
running on your PC.

In (3) you run an X server on the pi (and X11 clients running on the pi
that should connect to it).

-- 
Tzafrir Cohen | tzaf...@jabber.org | VIM is
http://tzafrir.org.il || a Mutt's
tzaf...@cohens.org.il ||  best
tzaf...@debian.org|| friend

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